Table 2.

Fractional Logistic Regression for Proportion of Voxels With Hypoperfusion in Moyamoya Patients

Hypoperfusion (Fifth Percentile of Healthy Volunteers)
	Coefficient	SE	95% CI	Odds Ratio	P Value
Method (vs PET)
Standard ASL	0.68	0.19	(0.31 to 1.05)	1.97	0.003*
Multidelay ASL	0.16	0.20	(−0.24 to 0.55)	1.17	0.454
Location (vs anterior)
Middle	−0.44	0.17	(−0.76 to −0.11)	0.64	0.037*
Posterior	−1.36	0.20	(−1.75 to −0.98)	0.26	<0.001*
Stenosis (vs normal)
Mild-moderate	1.14	0.18	(0.78 to 1.50)	3.08	<0.001*
Severe	1.02	0.19	(0.65 to 1.39)	2.80	0.001*
Constant	−2.41	0.21	(−2.81 to −2.00)	0.10	…

ASL indicates arterial spin labeling; and PET, positron emission tomography.

^*Significant difference in regression model.